Ep 23 title





Air Date

September 18, 2011



Opening Song

In My World

Ending Song

Wired Life

Episode 22
Episode 24
List of Episodes

Truth is the twenty-third episode of the Ao No Exorcist anime. It first aired on September 18, 2011.


Ernst's plan to destroy Gehenna backfires when Satan reveals to Yukio the truth behind his and his brother's origin. The brothers' mother, Yuri, decided to give birth to her 2 sons of demonic origin, Yukio and Rin, which led to her father, Ernst, giving an order to burn her and her sons. To protect Yuri, Satan possessed many human bodies, which were too weak to harness Satan's power and thus perished, including Ernst's, leading to the Blue Night before taking possession of his body.


  • Ernst actually caused the Blue Night due to his bigotry.
    • Appropriately his malice comes full circle when he is pulled into Gahanna.
  • Yukio becomes Satan's vessel due to being his offspring; as Satan's power was already in Yukio from birth, he wouldn't be destroyed by possession.

Characters In Order of Appearance

Manga & Anime Differences

This is an anime only episode, it does not appear in the manga.


v - e Episodes
Exorcist Cram School Enrollment arc Episode 1Episode 2Episode 3Episode 4Episode 5Episode 6Episode 7Episode 8Episode 9
Exorcist Candidate Live Combat arc Episode 10Episode 11Episode 12Episode 13Episode 14Episode 15Episode 16Episode 17
Anime-Exclusive arc Episode 18Episode 19Episode 20Episode 21Episode 22Episode 23
Episode 24Episode 25
Kyoto Impure King arc Episode 26Episode 27Episode 28Episode 29Episode 30Episode 31Episode 32Episode 33Episode 34Episode 35Episode 36Episode 37
OVAs Kuro no Iede (OVA)OVA 2OVA 3
Omakes Ao no Exorcist 「Anime Special: Ura Eku」
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